vf_xfade_opencl.c File Reference

#include "libavutil/log.h"
#include "libavutil/mem.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "filters.h"
#include "internal.h"
#include "opencl.h"
#include "opencl_source.h"
#include "video.h"

Go to the source code of this file.

Data Structures
struct	XFadeOpenCLContext

Macros
#define	OFFSET(x)   offsetof(XFadeOpenCLContext, x)
#define	FLAGS   (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)

Enumerations
enum	XFadeTransitions {   CUSTOM = -1 , FADE , WIPELEFT , WIPERIGHT ,   WIPEUP , WIPEDOWN , SLIDELEFT , SLIDERIGHT ,   SLIDEUP , SLIDEDOWN , CIRCLECROP , RECTCROP ,   DISTANCE , FADEBLACK , FADEWHITE , RADIAL ,   SMOOTHLEFT , SMOOTHRIGHT , SMOOTHUP , SMOOTHDOWN ,   CIRCLEOPEN , CIRCLECLOSE , VERTOPEN , VERTCLOSE ,   HORZOPEN , HORZCLOSE , DISSOLVE , PIXELIZE ,   DIAGTL , DIAGTR , DIAGBL , DIAGBR ,   HLSLICE , HRSLICE , VUSLICE , VDSLICE ,   HBLUR , FADEGRAYS , WIPETL , WIPETR ,   WIPEBL , WIPEBR , SQUEEZEH , SQUEEZEV ,   NB_TRANSITIONS , CUSTOM , FADE , WIPELEFT ,   WIPERIGHT , WIPEUP , WIPEDOWN , SLIDELEFT ,   SLIDERIGHT , SLIDEUP , SLIDEDOWN , NB_TRANSITIONS }

Functions
static int	xfade_opencl_load (AVFilterContext *avctx, enum AVPixelFormat main_format, enum AVPixelFormat xfade_format)
static int	xfade_frame (AVFilterContext *avctx, AVFrame *a, AVFrame *b)
static int	xfade_opencl_config_output (AVFilterLink *outlink)
static int	xfade_opencl_activate (AVFilterContext *avctx)
static av_cold void	xfade_opencl_uninit (AVFilterContext *avctx)
static AVFrame *	get_video_buffer (AVFilterLink *inlink, int w, int h)
	AVFILTER_DEFINE_CLASS (xfade_opencl)

Variables
static const AVOption	xfade_opencl_options []
static const AVFilterPad	xfade_opencl_inputs []
static const AVFilterPad	xfade_opencl_outputs []
AVFilter	ff_vf_xfade_opencl

Macro Definition Documentation

OFFSET

#define OFFSET

(

x

)

offsetof(XFadeOpenCLContext, x)

Definition at line 386 of file vf_xfade_opencl.c.

FLAGS

#define FLAGS   (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)

Definition at line 387 of file vf_xfade_opencl.c.

Enumeration Type Documentation

XFadeTransitions

enum XFadeTransitions

Enumerator
CUSTOM
FADE
WIPELEFT
WIPERIGHT
WIPEUP
WIPEDOWN
SLIDELEFT
SLIDERIGHT
SLIDEUP
SLIDEDOWN
CIRCLECROP
RECTCROP
DISTANCE
FADEBLACK
FADEWHITE
RADIAL
SMOOTHLEFT
SMOOTHRIGHT
SMOOTHUP
SMOOTHDOWN
CIRCLEOPEN
CIRCLECLOSE
VERTOPEN
VERTCLOSE
HORZOPEN
HORZCLOSE
DISSOLVE
PIXELIZE
DIAGTL
DIAGTR
DIAGBL
DIAGBR
HLSLICE
HRSLICE
VUSLICE
VDSLICE
HBLUR
FADEGRAYS
WIPETL
WIPETR
WIPEBL
WIPEBR
SQUEEZEH
SQUEEZEV
NB_TRANSITIONS
CUSTOM
FADE
WIPELEFT
WIPERIGHT
WIPEUP
WIPEDOWN
SLIDELEFT
SLIDERIGHT
SLIDEUP
SLIDEDOWN
NB_TRANSITIONS

Definition at line 31 of file vf_xfade_opencl.c.

Function Documentation

xfade_opencl_load()

static int xfade_opencl_load ( AVFilterContext *  avctx, enum AVPixelFormat  main_format, enum AVPixelFormat  xfade_format  )

static

Definition at line 71 of file vf_xfade_opencl.c.

Referenced by xfade_frame().

xfade_frame()

static int xfade_frame ( AVFilterContext *  avctx, AVFrame *  a, AVFrame *  b  )

static

Definition at line 139 of file vf_xfade_opencl.c.

Referenced by xfade_opencl_activate().

xfade_opencl_config_output()

static int xfade_opencl_config_output ( AVFilterLink *  outlink )

static

Definition at line 214 of file vf_xfade_opencl.c.

xfade_opencl_activate()

static int xfade_opencl_activate ( AVFilterContext *  avctx )

static

Definition at line 259 of file vf_xfade_opencl.c.

xfade_opencl_uninit()

static av_cold void xfade_opencl_uninit ( AVFilterContext *  avctx )

static

Definition at line 355 of file vf_xfade_opencl.c.

get_video_buffer()

static AVFrame* get_video_buffer ( AVFilterLink *  inlink, int  w, int  h  )

static

Definition at line 377 of file vf_xfade_opencl.c.

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

xfade_opencl

)

Variable Documentation

xfade_opencl_options

const AVOption xfade_opencl_options[]

static

Initial value:

= {
    { "transition", "set cross fade transition", OFFSET(transition), AV_OPT_TYPE_INT, {.i64=1}, 0, NB_TRANSITIONS-1, FLAGS, "transition" },
    {   "custom",    "custom transition",     0, AV_OPT_TYPE_CONST, {.i64=CUSTOM},    0, 0, FLAGS, "transition" },
    {   "fade",      "fade transition",       0, AV_OPT_TYPE_CONST, {.i64=FADE},      0, 0, FLAGS, "transition" },
    {   "wipeleft",  "wipe left transition",  0, AV_OPT_TYPE_CONST, {.i64=WIPELEFT},  0, 0, FLAGS, "transition" },
    {   "wiperight", "wipe right transition", 0, AV_OPT_TYPE_CONST, {.i64=WIPERIGHT}, 0, 0, FLAGS, "transition" },
    {   "wipeup",    "wipe up transition",    0, AV_OPT_TYPE_CONST, {.i64=WIPEUP},    0, 0, FLAGS, "transition" },
    {   "wipedown",  "wipe down transition",  0, AV_OPT_TYPE_CONST, {.i64=WIPEDOWN},  0, 0, FLAGS, "transition" },
    {   "slideleft",  "slide left transition",  0, AV_OPT_TYPE_CONST, {.i64=SLIDELEFT},  0, 0, FLAGS, "transition" },
    {   "slideright", "slide right transition", 0, AV_OPT_TYPE_CONST, {.i64=SLIDERIGHT}, 0, 0, FLAGS, "transition" },
    {   "slideup",    "slide up transition",    0, AV_OPT_TYPE_CONST, {.i64=SLIDEUP},    0, 0, FLAGS, "transition" },
    {   "slidedown",  "slide down transition",  0, AV_OPT_TYPE_CONST, {.i64=SLIDEDOWN},  0, 0, FLAGS, "transition" },
    { "source", "set OpenCL program source file for custom transition", OFFSET(source_file), AV_OPT_TYPE_STRING, {.str = NULL}, .flags = FLAGS },
    { "kernel", "set kernel name in program file for custom transition", OFFSET(kernel_name), AV_OPT_TYPE_STRING, {.str = NULL}, .flags = FLAGS },
    { "duration", "set cross fade duration", OFFSET(duration), AV_OPT_TYPE_DURATION, {.i64=1000000}, 0, 60000000, FLAGS },
    { "offset",   "set cross fade start relative to first input stream", OFFSET(offset), AV_OPT_TYPE_DURATION, {.i64=0}, INT64_MIN, INT64_MAX, FLAGS },
    { NULL }
}

Definition at line 389 of file vf_xfade_opencl.c.

xfade_opencl_inputs

const AVFilterPad xfade_opencl_inputs[]

static

Initial value:

= {
    {
        .name             = "main",
        .type             = AVMEDIA_TYPE_VIDEO,
        .get_video_buffer = get_video_buffer,
        .config_props     = &ff_opencl_filter_config_input,
    },
    {
        .name             = "xfade",
        .type             = AVMEDIA_TYPE_VIDEO,
        .get_video_buffer = get_video_buffer,
        .config_props     = &ff_opencl_filter_config_input,
    },
    { NULL }
}

Definition at line 410 of file vf_xfade_opencl.c.

xfade_opencl_outputs

const AVFilterPad xfade_opencl_outputs[]

static

Initial value:

= {
    {
        .name          = "default",
        .type          = AVMEDIA_TYPE_VIDEO,
        .config_props  = &xfade_opencl_config_output,
    },
    { NULL }
}

Definition at line 426 of file vf_xfade_opencl.c.

ff_vf_xfade_opencl

AVFilter ff_vf_xfade_opencl

Initial value:

= {
    .name            = "xfade_opencl",
    .description     = NULL_IF_CONFIG_SMALL("Cross fade one video with another video."),
    .priv_size       = sizeof(XFadeOpenCLContext),
    .priv_class      = &xfade_opencl_class,
    .init            = &ff_opencl_filter_init,
    .uninit          = &xfade_opencl_uninit,
    .query_formats   = &ff_opencl_filter_query_formats,
    .activate        = &xfade_opencl_activate,
    .inputs          = xfade_opencl_inputs,
    .outputs         = xfade_opencl_outputs,
    .flags_internal  = FF_FILTER_FLAG_HWFRAME_AWARE,
}

Definition at line 435 of file vf_xfade_opencl.c.